Duplex sheet-pile driver



Apr. 17, 1923. 1,45L922 J.PERNA DUPLEX SHEET FILE DRIVER Filed March 2,1922 3 Sheets-$heet l ZNV ENTOR Apr. 17, 1923. 1,453,922

J. PERNA DUPLEX SHEET PILE DRIVER Filed March 2, 1922 S Sheets-Sheet 2Apr. 1'7, 1923. 1,451,922

J. PERNA DUPLEX SHEET PILE DRIVER Filed March 2, 1922 3 Sheets-Sheet 5.1 IN V' 57V TOR case l ma/ Patented Apr. 17, 19 23.

\ rra JOSEPH PERNA, OF PHILADELPHIA, PENNSYLVANIA.

DUPLEX SHEET-FILE DIR-IVER.

Application filed March 2, 1922. Serial No. 540,420.

My invention relates to new and useful improvements in a duplexsheet-pile driver, and has for its object to provide a portable deviceof this character which is movable along a. track so that successivesheets of metal pile may be driven into the ground prior to excavation.

Another object of the invention is to provide an excavator framecarrying two hammers which may be used separately for driving one lineof piles or used together to drive two parallel lines of piles, the saidhammers being actuated by suitable hoisting mechanism receiving theirpower from one source, such as an engine.

A further object of the invention is to so construct the pile driverthat the hammers may be adjusted transversely for driv- -ing the linesof piles diflerent distances apart in order to outline trenches ofdiferent width.

With these ends in view, this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claims.

In order that those skilled in the art to which this inventionappertains, may understand how to make and use the same, I will describeits construction in detail, referring by numerals to the accompanyingdrawings forming a part of this application, in which Fig. 1, is a sideelevation of a duplex sheet pile driver embodying my improvements andillustrating a number of sheet piles in different positions.

Fig. 2, is a plan view thereof.

Fig. 3, is a front elevation thereof.

Fig. 4, is an enlarged perspective view of a holding or guiding arm forholding a pile upright during the driving operation.

In carrying out my invention as here em bodied, 2 represents the ties orsleepers which are placed along the course of a teach to be eaeavatedand on which are mounted the rails 8 of the track on which the piledriver runs. The pile driver consists of a suitable framed mounted uponthe wheels 5 for supporting the frame and permitting the same to beadvanced along the track.

The frame includes two forward uprights 6 the upper ends of which arecurved outwardly as at 7 so that their extreme ends project somedistance forward of the main portion of the frame and in its upper outerends is mounted a stationary transverse axle 8. On the axle areadjustably mounted the collars 9 arranged in pairs with a cable shield10 joined to each pair so as to project across the grooved pulley orshive 11 revolubly and slidably mounted upon the axle 8 so that thepulleys may be set in different positions upon the axle when the collarsare shifted, the said collars being held in their adjusted positions byset screws 12 or their equivalent.

To the uprights 6 are hinged in any suit able and well known manner theadjustable brackets 13 and 14, the brackets on each upright coacting tohold a guide rod 15 which is fixed in the outer ends of said bracketsand on which slides the barrel 16 carrying the horizontal parallel arms17 through which passes the hammer rod 18 having a hammer 19 secured toits lower end and provided at its upper end with an eye 20 for thereception of a hook 21 at tached to the cable 22. Each cable runs overone of the grooved pulleys 11 and is then wound upon one of the drums23, 24 which may be actuated separately or in unison by means of anysuitable means such as steam, electricity or compressed air being hereinconventionally represented as a steam engine 25.

In order to hold the piling in an upright position during the drivingoperations I provide suitable interchangeable guide arms 26 one form ofwhich is shown in Fig. 5 and these may be adjustably mounted upon theforward cross beam 27 of the pile driver frame. As here shown the crossbeam has longitudinal slots 28 formed therein through which passsuitable fastening devices, such as screws or their equivalent whichhave threaded connection with the head 29 which is of suiiicient size tosnugly fit within the recess of a channel iron or l-beam such a metal eni e is used as the cross beam. The outer end of the guide arms isnotched or recessed as at 30- into which fits edgewise a sheet pilingrepresented by the numeral 31 and this sheet piling is tongued andgrooved so as to interlock with each other.

The pile driver herein described is particularly adapted for setting anddriving sheet metal piling in relatively soft ground and preferablyprior to excavating the trench and in operation both the hammers 19 areswung within the frame by rotating the bar 'el and swinging the brackets13 and l l inward at which time said hammers may be allowed to rest uponthe flooring of the frame and the cables 22 disconnected therefrom or iffound desirable said hammers may be'allowedto rest upon the ground andthe cables disconnected. After the-cables are disconnected from thehammers they may be used for dragging the sheet metal piling 7 from anadjacent locality and hoisted to an upright position and moved intoregistration with the slots in the guide arms and then permitted to dropwhich will cause the ends of the piling to enter the-ground a shortdistance and with the assistance of the guide arms said piling will beheld upright. The hammers are then again attached to the cables andraised the desired height and allowed to fall onto the'upper end of thepiling which will gradually drive the same into the ground as will beobvious.

Because of the barrels 16 and the arms 17 formed therewith the hammerswill be con-' stantly guided during their operations with theguidingmeans always close to the hammersunder ordinary conditions or unless thepiling being driven reaches a point considerably below'tlie framework inwhich case the barrels 1.6 would come to a full stop when reachingthelower brackets, while the hammers-could continue to fall Within thelimits of the rods 18 for striking their blows.

Prior'to carrying on the operations above set forth the grooved pulleysor shives 11 are adjusted upon the axle 8 so that the distance betweentheir centers is approximately equal to the distance desired between thetwo lines of pilin Of course l do not wish to be limited to the exactdetails of construction as herein shown as these may be varied withinthe limits of the appended claims without deartin from the s irit of minvention.

Having thus fully described my invention, what I claim as new and usefulis l. A pile driver consisting of a frame, an axle fixed in said frame,two pulleys adj ustably journalled on said axle, means to hold saidpulleys in their adjusted positions, cables running over said pulleys,means for operating the cables, a hammer connected to an end of eachcable, two pairs of brackets hinged to the frame, a vertical rod betweeneach pair of brackets and fixed thereto, a barrel slidably mounted uponeach of said rods, and arms carried by each barrel through which passesa component part of each hammer.

A duplex pile driver consisting of a frame including a pair of forwarduprights having their upper ends curved outwardly, an axle mounted inthe ends of said outwardly projecting. portions, pulleys adjustablymounted on said axles, a pair of brackets hinged to each of saiduprights, a rod carried by each pair of brackets, a barrel slidablymounted on each rod, a pair of horizontal arms carried by each barrel, ahammer rod passing through the arms of each barrel and slidablevertically therein, a hammer carried by the lower end of each hammerrod, and a cable detachably connected to the upper end of each hammerrod and 1 )assingover the pulleys and a mechanism common to both cablesfor operating said cables.

S. A duplex pile driver consisting of a frame including a pair offorward uprights having their upper ends curved outwardly, an axlemounted in the ends said out: wardlyfprojecting portions, pulleysadjustably mounted on said axles, a pairof brackets hinged. to each ofsaid uprights,- a rod carried by each pair of brackets, a barrelslidably mounted on each red, a pair of horizontal arms carried by eachbarrel, a hammer rod )assing through the arms of each barrel ancslidable vertically therein, ahammer carried by the lower end of eachhammer rod, a cable detachably connected to the upper end of each hammerrod and passing over. the pulleys, amechanism common to both cables foroperating them, and interchangeable guide arms adjustably mounted uponthe lower-part of the frame'for guiding sheet piling to be driven by thehammer.

In testimony whereof, I have hereunto atfixed my signature.

JOSEPH FERN:

